An NMR radio frequency (RF) surface coil allows the user to continuously vary the size of the field of view. The surface coil utilizes a modified radio frequency trombone for size adjustment that results in a stable resonant frequency of the coil over a wide range of dimensions such that retuning of...http://www.google.fr/patents/US5049821?utm_source=gb-gplus-shareBrevet US5049821 - Continuously variable field of view surface coil for NMR imaging
Continuously variable field of view surface coil for NMR imaging
